Daz, you don't mind if I give that LED Rear Tail Lights a go , down here in Australia?
as I make mine up 'll document the process so it can be repeated and I'll see about including some reversing lights and also some reflectors as both are mandatory here in Australia.
If you don't mind me asking, did u just gut a set of original tail lights and centre panel to get the final shape and also to have ability to bolt them back in place and did u use the original connectors on the tails lights to provide power to them or did the black box for the rear lights give u grief.
I'm happy to share with you anything I develop or work out to be an issue with the design.
cheers
Rob